US3696688A - Automatic balancer for rotating masses - Google Patents
Automatic balancer for rotating masses Download PDFInfo
- Publication number
- US3696688A US3696688A US139758A US3696688DA US3696688A US 3696688 A US3696688 A US 3696688A US 139758 A US139758 A US 139758A US 3696688D A US3696688D A US 3696688DA US 3696688 A US3696688 A US 3696688A
- Authority
- US
- United States
- Prior art keywords
- groove
- race
- side walls
- race element
- rotating mass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 102100034742 Rotatin Human genes 0.000 description 1
- 101710200213 Rotatin Proteins 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
- F16F15/36—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved
- F16F15/363—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved using rolling bodies, e.g. balls free to move in a circumferential direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/211—Eccentric
- Y10T74/2111—Plural, movable relative to each other [including ball[s]]
Definitions
- the primary object of the invention is to provide an automatic balancer of the race and ball type capable of balancing masses at high rotational velocities, for example, in excess of 1500 r.p.m. as well as low velocities.
- Another object .of the invention is to provide a balancer of the described class which readily lends itself to precision fabrication.
- Another object of the invention is to provide a ball and race balancer. capable of employing large ball weights at high speeds.
- a further object. is to provide a ball and race balancer having perfectly balanced means for injecting a lubricating and damping fluid in the race.
- FIG. 1 is a broken elevational view of a device according to the invention for balancing rotating masses
- FIG. 2 is a vertical sectional view taken on line 2-2 of FIG. 1, and
- FIG. 3 is a sectional view similar to the upper portion of FIG. 2 but showing a modified form of the invention.
- a wheel portion is comprised of identical halves 11 having contacting flat center surfaces 12 and a shaft receiving opening 13 therethrough.
- Each wheel half 11 has a hub 14, a circumferential flange 15 and a web 16 between the hub and the flange.
- the race element 17 which is of metal, and because of its shape the inner surface may be precision finished and polished.
- the race element 17 is in the form of a ring having flat sides and a cylindrical outer periphery.
- the internal groove of the race element 17 has a semicircular outer cross-section 18 and tangential parallel side walls 19.
- the described groove of the race element 17 is of a size to receive a row of round weights or balls 20 of stainless steel or similar hardness, and each ball is as nearly perfect in shape and is as uniform in density as possible.
- the ball weights 20 are relatively large as shown in the drawing.
- the rela- The fluid 21 is introduced through one of two diametrical y opposite holes, not numbered, m a wall 19 of the race element 17, which holes are subsequently plugged as at 22. It is to be noted that the plugs 22 are inwardly of the centers of balls 20 when the latter are received in the race.
- FIG. 3 The form of the invention shown in FIG. 3 is like the foregoing except that there is a single flange 23 spanning the inner circumferences of the race walls 19 instead of the two flanges 15 as shown in FIG. 2.
- the flanges 15 or 23 may be pressed in the race element 17 or they may be chamfered, welded and ground, not shown.
- the balancer is concentrically mounted on and turns about the axial center of the rotating mass to be balanced, and the balls 20 position themselves upon rotation of the mass to oppose the eccentric mass portion which tends to cause imbalance.
- a device for automatically balancing a rotating mass consisting of a cylindrical race element, an annular internal groove therein, the inner surface of said groove having an outer semicircular portion in cross section and side walls parallel with each other and tangential with the semicircular portion, a wheel portion having cylindrical outer surface engaging the inner circumferences of said side walls, ball weights received within said groove, the diameters of said ball weights being of a size to substantially span the distance between said side walls and means lubricating said balls.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Testing Of Balance (AREA)
Abstract
An automatic balancer for rotating masses comprised of a race having a semicircular periphery and parallel inner walls, a hub snugly received in the race and of a width to engage the walls'' inner circumferences and steel balls in the race, the balls having radii slightly less that the radius of the semicircular portion of the race periphery.
Description
United States Patent Goodrich et al.
[54] AUTOMATIC BALANCER FOR ROTATING MASSES Inventors: Eugene A. Goodrich, 4101 Wedgworth Road South; Robert H. Johnson, 6601 South Hulen Street, both of Fort Worth, Tex. 76133 Filed: May 3, 1971 Appl. No.: 139,758
US. Cl. ..74/573, 188/1 B Int. Cl. ..Fl6f 15/32 Field of Search ..74/573, 574; 301/5 BA,
References Cited UNITED STATES PATENTS 3,109,321 11/1963 Rogers ..74/573 [451 Oct. 10,1972
3,346,303 10/1967 Wesley ..74/573 X Primary Examiner-William F. ODea Assistant Examiner-F. D. Shoemaker Attorney-Wofi'ord, Felsman & Fails ABSTRACT 3 Claims, 3 Drawing Figures FATENTEDUCI 10 I972 INVEN TORS m m 0 O G A w E ROBE/Q T H, JOHNSON A TTORNEV AUTOMATIC BALANCER FOR ROTATIN MASSES This invention relates to automatic balancers for damping vibrations in rotating masses such as rotors in jet engines, grinders, helicopter rotors, propellers, shafts, etc., and which balancer is of the type having ball weights in a race rotating about an axis.
Heretofore balancers of the type referred to were not effective at extremely high speeds because'they were not precision made. At high speeds, due to slight imperfections in the races, the balls tended to bunch and created worse vibrations than those corrected at lower speeds. It is to be understood that the present invention is not directed to precision fabrication per se, but has to do with a construction readily capable of precision fabrication.
The primary object of the invention is to provide an automatic balancer of the race and ball type capable of balancing masses at high rotational velocities, for example, in excess of 1500 r.p.m. as well as low velocities.
Another object .of the invention is to provide a balancer of the described class which readily lends itself to precision fabrication.
Another object of the invention is to provide a ball and race balancer. capable of employing large ball weights at high speeds. t
v A further object. is to provide a ball and race balancer having perfectly balanced means for injecting a lubricating and damping fluid in the race.
These and other objects of the invention will become apparent from the following description and the accompanying drawing, in which:
FIG. 1 is a broken elevational view of a device according to the invention for balancing rotating masses,
FIG. 2 is a vertical sectional view taken on line 2-2 of FIG. 1, and
FIG. 3 is a sectional view similar to the upper portion of FIG. 2 but showing a modified form of the invention.
In the form of the invention shown in FIGS. 1 and 2 a wheel portion is comprised of identical halves 11 having contacting flat center surfaces 12 and a shaft receiving opening 13 therethrough. Each wheel half 11 has a hub 14, a circumferential flange 15 and a web 16 between the hub and the flange.
An important feature of the invention is the construction of the race element 17 which is of metal, and because of its shape the inner surface may be precision finished and polished. The race element 17 is in the form of a ring having flat sides and a cylindrical outer periphery. The internal groove of the race element 17 has a semicircular outer cross-section 18 and tangential parallel side walls 19. The described groove of the race element 17 is of a size to receive a row of round weights or balls 20 of stainless steel or similar hardness, and each ball is as nearly perfect in shape and is as uniform in density as possible. Preferably, the ball weights 20 are relatively large as shown in the drawing. The rela- The fluid 21 is introduced through one of two diametrical y opposite holes, not numbered, m a wall 19 of the race element 17, which holes are subsequently plugged as at 22. It is to be noted that the plugs 22 are inwardly of the centers of balls 20 when the latter are received in the race.
The form of the invention shown in FIG. 3 is like the foregoing except that there is a single flange 23 spanning the inner circumferences of the race walls 19 instead of the two flanges 15 as shown in FIG. 2. The flanges 15 or 23 may be pressed in the race element 17 or they may be chamfered, welded and ground, not shown.
Although the forms of the invention shown in the. drawing are in vertical positions, it is to be understood that they will operate horizontally or at any angle. In operation the balancer is concentrically mounted on and turns about the axial center of the rotating mass to be balanced, and the balls 20 position themselves upon rotation of the mass to oppose the eccentric mass portion which tends to cause imbalance.
The invention is not limited to the exemplary constructions herein shown and described but may be made in various ways within the scope of the appended claims.
What is claimed is:
l. A device for automatically balancing a rotating mass and consisting of a cylindrical race element, an annular internal groove therein, the inner surface of said groove having an outer semicircular portion in cross section and side walls parallel with each other and tangential with the semicircular portion, a wheel portion having cylindrical outer surface engaging the inner circumferences of said side walls, ball weights received within said groove, the diameters of said ball weights being of a size to substantially span the distance between said side walls and means lubricating said balls.
2. A device for automatically balancing a rotating mass as defined in claim 1 and wherein the distances between the outer peripheral corners of said race element and the semicircular portion of said groove are greater than the thicknesses of said side walls.
3. A device for automatically balancing a rotating mass as defined in claim 1 and wherein said means lubricating said ball weights is a fluid, and diametrically opposite plugged openings in a said side wall for receiving and then sealing said fluid in the groove of said race element.
Claims (3)
1. A device for automatically balancing a rotating mass and consisting of a cylindrical race element, an annular internal groove therein, the inner surface of said groove having an outer semicircular portion in cross section and side walls parallel with each other and tangential with the semicircular portion, a wheel portion having cylindrical outer surface engaging the inner circumferences of said side walls, ball weights received within said groove, the diameters of said ball weights being of a size to substantially span the distance between said side walls and means lubricating said balls.
2. A device for automatically balancing a rotating mass as defined in claim 1 and wherein the distances between the outer peripheral corners of said race element and the semicircular portion of said groove are greater than the thicknesses of said side walls.
3. A device for automatically balancing a rotating mass as defined in claim 1 and wherein said means lubricating said ball weights is a fluid, and diametrically opposite plugged openings in a said side wall for receiving and then sealing said fluid in the groove of said race element.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13975871A | 1971-05-03 | 1971-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3696688A true US3696688A (en) | 1972-10-10 |
Family
ID=22488155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US139758A Expired - Lifetime US3696688A (en) | 1971-05-03 | 1971-05-03 | Automatic balancer for rotating masses |
Country Status (1)
Country | Link |
---|---|
US (1) | US3696688A (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3970260A (en) * | 1973-09-26 | 1976-07-20 | Rieter Machine Works, Ltd. | Apparatus for building a rotationally symmetrically evened bobbin package and method of operating the apparatus |
DE3413388A1 (en) * | 1984-04-10 | 1985-10-24 | Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal | Exhaust turbo charger |
US4571985A (en) * | 1983-11-17 | 1986-02-25 | The United States Army Corps Of Engineers As Represented By The Secretary Of The Army | Method and apparatus for measuring the hydraulic conductivity of porous materials |
DE3509089A1 (en) * | 1984-09-24 | 1986-04-03 | Tallinskij politechničeskij institut, Tallin | Automatic balancing device |
US4674356A (en) * | 1985-05-01 | 1987-06-23 | Kilgore Ronald B | Dynamic rotational counterbalance structure |
US4787132A (en) * | 1985-05-01 | 1988-11-29 | Kilgore Ronald B | Method of making dynamic rotational counterbalance structure |
US4905776A (en) * | 1989-01-17 | 1990-03-06 | Amoco Corporation | Self-balancing drilling assembly and apparatus |
US5460017A (en) * | 1992-05-21 | 1995-10-24 | Eti Technologies Inc. | Weight compensating apparatus |
US5592858A (en) * | 1992-05-21 | 1997-01-14 | Eti Technologies Inc. | Weight compensating method and apparatus |
US5605078A (en) * | 1992-05-21 | 1997-02-25 | Eti Technologies Inc. | Weight compensating method and apparatus |
US5613408A (en) * | 1992-05-21 | 1997-03-25 | Eti Technologies Inc. | Weight compensating method and apparatus |
WO1997016657A1 (en) * | 1995-10-30 | 1997-05-09 | Aktiebolaget Skf (Publ) | Automatic balancing device |
US5724862A (en) * | 1992-05-21 | 1998-03-10 | Eti Technologies Inc. | Dynamic balancing method and apparatus |
US5845542A (en) * | 1992-05-21 | 1998-12-08 | Eti Technologies Inc. | Dynamic balancing method and apparatus |
US5850749A (en) * | 1996-05-30 | 1998-12-22 | Samsung Electronics Co., Ltd. | Balancing device for a drum washing machine |
US5860865A (en) * | 1996-04-19 | 1999-01-19 | Lockheed Martin Corporation | Pneumatically driven auto-balance rotor hub |
FR2771787A1 (en) * | 1997-12-01 | 1999-06-04 | Skf France | Free wheel device with integrated self adjusting balancing system |
EP0927833A1 (en) * | 1997-12-31 | 1999-07-07 | Samsung Electronics Co., Ltd. | Apparatus and method for manufacturing a device for counteracting imbalance caused by the uneven distribution of a load in a rotary drum |
US6220970B1 (en) * | 1999-11-05 | 2001-04-24 | Ford Global Tech., Inc | Virbration absorption assembly |
US6333912B1 (en) | 1999-02-01 | 2001-12-25 | Samsung Electronics Co., Ltd. | Self-compensating dynamic ball balancer for disk player |
DE10034952A1 (en) * | 2000-07-19 | 2002-01-31 | Schaeffler Waelzlager Ohg | Device for automatic balancing |
US6418815B1 (en) * | 1997-07-08 | 2002-07-16 | Samsung Electronics Co., Ltd. | Apparatus for balancing rotating member |
DE10123031A1 (en) * | 2001-05-11 | 2002-11-21 | Bosch Gmbh Robert | Dynamic or automatic balancing of rotating systems using a closed circumferential track around the rotating system that can accommodate different sized balance weights for different operating ranges |
US6507555B1 (en) | 1996-07-19 | 2003-01-14 | Matsushita Electric Industrial Co., Ltd. | Balanced disk drive apparatus |
US20030017879A1 (en) * | 2001-07-23 | 2003-01-23 | Chun-Yi Tsay | Automatic stabilizer for high-speed drill spindle |
US20040045397A1 (en) * | 2002-09-11 | 2004-03-11 | Sean Chang | Anti-vibration method for rotating disks and its apparatus |
US6741544B1 (en) * | 1997-09-25 | 2004-05-25 | Matsushita Electric Industrial Co., Ltd. | Disk drive apparatus |
DE10333672A1 (en) * | 2003-07-24 | 2005-02-17 | Ina-Schaeffler Kg | Auto-balancing belt tension pulley has an annular channel in which a balance weight ball-bearing is free to move and thus provide automatic balancing of the pulley |
US20050109154A1 (en) * | 2003-11-20 | 2005-05-26 | Sean Chang | Anti-vibration apparatus and related method thereof for rotating disks |
US20080063526A1 (en) * | 2006-09-13 | 2008-03-13 | Asia Vital Components Co., Ltd. | Structure of balancing fan |
US20110203324A1 (en) * | 2006-06-01 | 2011-08-25 | Samsung Electronics Co., Ltd | Drum type washing machine |
US8516885B1 (en) | 2009-01-12 | 2013-08-27 | Doug Fortune | Rotating object dynamic balancing system and method |
US20130263659A1 (en) * | 2012-04-04 | 2013-10-10 | Elliott Company | Passive dynamic inertial rotor balance system for turbomachinery |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3109321A (en) * | 1961-09-19 | 1963-11-05 | Cecil B Rogers | Balancer for a rotating shaft |
US3346303A (en) * | 1965-08-19 | 1967-10-10 | Awb Mfg Co | Dynamic wheel balancer |
-
1971
- 1971-05-03 US US139758A patent/US3696688A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3109321A (en) * | 1961-09-19 | 1963-11-05 | Cecil B Rogers | Balancer for a rotating shaft |
US3346303A (en) * | 1965-08-19 | 1967-10-10 | Awb Mfg Co | Dynamic wheel balancer |
Cited By (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3970260A (en) * | 1973-09-26 | 1976-07-20 | Rieter Machine Works, Ltd. | Apparatus for building a rotationally symmetrically evened bobbin package and method of operating the apparatus |
US4571985A (en) * | 1983-11-17 | 1986-02-25 | The United States Army Corps Of Engineers As Represented By The Secretary Of The Army | Method and apparatus for measuring the hydraulic conductivity of porous materials |
DE3413388A1 (en) * | 1984-04-10 | 1985-10-24 | Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal | Exhaust turbo charger |
DE3509089A1 (en) * | 1984-09-24 | 1986-04-03 | Tallinskij politechničeskij institut, Tallin | Automatic balancing device |
US4674356A (en) * | 1985-05-01 | 1987-06-23 | Kilgore Ronald B | Dynamic rotational counterbalance structure |
US4787132A (en) * | 1985-05-01 | 1988-11-29 | Kilgore Ronald B | Method of making dynamic rotational counterbalance structure |
US4905776A (en) * | 1989-01-17 | 1990-03-06 | Amoco Corporation | Self-balancing drilling assembly and apparatus |
US5711190A (en) * | 1992-05-21 | 1998-01-27 | Eti Technologies Inc. | Weight compensating method and apparatus |
US5845542A (en) * | 1992-05-21 | 1998-12-08 | Eti Technologies Inc. | Dynamic balancing method and apparatus |
US5605078A (en) * | 1992-05-21 | 1997-02-25 | Eti Technologies Inc. | Weight compensating method and apparatus |
US5613408A (en) * | 1992-05-21 | 1997-03-25 | Eti Technologies Inc. | Weight compensating method and apparatus |
US5460017A (en) * | 1992-05-21 | 1995-10-24 | Eti Technologies Inc. | Weight compensating apparatus |
US5592858A (en) * | 1992-05-21 | 1997-01-14 | Eti Technologies Inc. | Weight compensating method and apparatus |
US5724862A (en) * | 1992-05-21 | 1998-03-10 | Eti Technologies Inc. | Dynamic balancing method and apparatus |
US5768951A (en) * | 1992-05-21 | 1998-06-23 | Eti Technologies Inc. | Dynamic balancing method and apparatus |
US5816115A (en) * | 1992-05-21 | 1998-10-06 | Eti Technologies Inc. | Weight compensating method and apparatus |
US5829318A (en) * | 1992-05-21 | 1998-11-03 | Eti Technologies Inc. | Dynamic balancing method and apparatus |
CN1083954C (en) * | 1995-10-30 | 2002-05-01 | Skf股份公司 | Automatic balancing device |
US6119547A (en) * | 1995-10-30 | 2000-09-19 | Aktiebolaget Skf | Automatic balancing device |
WO1997016657A1 (en) * | 1995-10-30 | 1997-05-09 | Aktiebolaget Skf (Publ) | Automatic balancing device |
US5860865A (en) * | 1996-04-19 | 1999-01-19 | Lockheed Martin Corporation | Pneumatically driven auto-balance rotor hub |
US5850749A (en) * | 1996-05-30 | 1998-12-22 | Samsung Electronics Co., Ltd. | Balancing device for a drum washing machine |
US20040093611A1 (en) * | 1996-07-19 | 2004-05-13 | Matsushita Electric Industrial Co., Ltd. | Disk drive apparatus |
US6711116B2 (en) | 1996-07-19 | 2004-03-23 | Matsushita Electric Industrial Co., Ltd. | Balanced disk drive apparatus |
US6704271B2 (en) | 1996-07-19 | 2004-03-09 | Matsushita Electric Industrial Co., Ltd. | Disk drive apparatus |
US6507555B1 (en) | 1996-07-19 | 2003-01-14 | Matsushita Electric Industrial Co., Ltd. | Balanced disk drive apparatus |
US6418815B1 (en) * | 1997-07-08 | 2002-07-16 | Samsung Electronics Co., Ltd. | Apparatus for balancing rotating member |
US7051346B2 (en) | 1997-09-25 | 2006-05-23 | Matsushita Electric Industrial Co., Ltd. | Disk drive apparatus having particular clamping device |
US20040111737A1 (en) * | 1997-09-25 | 2004-06-10 | Matsushita Electric Industrial Co., Ltd. | Disk drive apparatus |
US6741544B1 (en) * | 1997-09-25 | 2004-05-25 | Matsushita Electric Industrial Co., Ltd. | Disk drive apparatus |
FR2771787A1 (en) * | 1997-12-01 | 1999-06-04 | Skf France | Free wheel device with integrated self adjusting balancing system |
EP0927833A1 (en) * | 1997-12-31 | 1999-07-07 | Samsung Electronics Co., Ltd. | Apparatus and method for manufacturing a device for counteracting imbalance caused by the uneven distribution of a load in a rotary drum |
US6333912B1 (en) | 1999-02-01 | 2001-12-25 | Samsung Electronics Co., Ltd. | Self-compensating dynamic ball balancer for disk player |
US6220970B1 (en) * | 1999-11-05 | 2001-04-24 | Ford Global Tech., Inc | Virbration absorption assembly |
DE10034952A1 (en) * | 2000-07-19 | 2002-01-31 | Schaeffler Waelzlager Ohg | Device for automatic balancing |
US6651527B2 (en) | 2000-07-19 | 2003-11-25 | INA-Wälzlager Schaeffler oHG | Self-balancing device |
DE10123031B4 (en) * | 2001-05-11 | 2004-08-19 | Robert Bosch Gmbh | Device for balancing a system rotating about an axis of rotation |
US20040003678A1 (en) * | 2001-05-11 | 2004-01-08 | Achim Neubauer | Device and method for balancing rotating systems |
DE10123031A1 (en) * | 2001-05-11 | 2002-11-21 | Bosch Gmbh Robert | Dynamic or automatic balancing of rotating systems using a closed circumferential track around the rotating system that can accommodate different sized balance weights for different operating ranges |
US20030017879A1 (en) * | 2001-07-23 | 2003-01-23 | Chun-Yi Tsay | Automatic stabilizer for high-speed drill spindle |
US20040045397A1 (en) * | 2002-09-11 | 2004-03-11 | Sean Chang | Anti-vibration method for rotating disks and its apparatus |
DE10333672A1 (en) * | 2003-07-24 | 2005-02-17 | Ina-Schaeffler Kg | Auto-balancing belt tension pulley has an annular channel in which a balance weight ball-bearing is free to move and thus provide automatic balancing of the pulley |
DE10333672B4 (en) * | 2003-07-24 | 2017-08-24 | Schaeffler Technologies AG & Co. KG | Belt tensioner |
US20050109154A1 (en) * | 2003-11-20 | 2005-05-26 | Sean Chang | Anti-vibration apparatus and related method thereof for rotating disks |
US20110203324A1 (en) * | 2006-06-01 | 2011-08-25 | Samsung Electronics Co., Ltd | Drum type washing machine |
US8171758B2 (en) * | 2006-06-01 | 2012-05-08 | Samsung Electronics Co., Ltd. | Drum type washing machine having single rear balancer |
US8468859B2 (en) | 2006-06-01 | 2013-06-25 | Samsung Electronics Co., Ltd. | Drum type washing machine |
US8820124B2 (en) | 2006-06-01 | 2014-09-02 | Samsung Electronics Co., Ltd. | Drum type washing machine |
US9228286B2 (en) | 2006-06-01 | 2016-01-05 | Samsung Electronics Co., Ltd. | Drum type washing machine |
US7717679B2 (en) * | 2006-09-13 | 2010-05-18 | Asia Vital Components Co., Ltd. | Structure of balancing fan |
US20080063526A1 (en) * | 2006-09-13 | 2008-03-13 | Asia Vital Components Co., Ltd. | Structure of balancing fan |
US8516885B1 (en) | 2009-01-12 | 2013-08-27 | Doug Fortune | Rotating object dynamic balancing system and method |
US20130263659A1 (en) * | 2012-04-04 | 2013-10-10 | Elliott Company | Passive dynamic inertial rotor balance system for turbomachinery |
US8984940B2 (en) * | 2012-04-04 | 2015-03-24 | Elliot Company | Passive dynamic inertial rotor balance system for turbomachinery |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3696688A (en) | Automatic balancer for rotating masses | |
US3733923A (en) | Economical automatic balancer for rotating masses | |
US5460017A (en) | Weight compensating apparatus | |
EP0640192B1 (en) | An unbalance compensating method and apparatus | |
US3109321A (en) | Balancer for a rotating shaft | |
US2672282A (en) | Rotary vacuum and compression pump | |
US2771240A (en) | Automatic dynamic balancer | |
US3410154A (en) | Automatic balancing device | |
US3938866A (en) | Roller cages formed from apertured separators for roller bearings | |
GB1481888A (en) | Bearing assemblies | |
GB897281A (en) | Improvements in and relating to vibration damper devices for wheels or gears | |
US5466049A (en) | Balancing ring | |
US2334285A (en) | Balanced rotary body | |
US2112984A (en) | Pendulum counterweight | |
US3647269A (en) | Stable bearing cage | |
US5613408A (en) | Weight compensating method and apparatus | |
US3552811A (en) | Bearing race assembly | |
US3376075A (en) | Dynamic wheel balancer | |
US5592858A (en) | Weight compensating method and apparatus | |
US2774244A (en) | Variable amplitude vibrator | |
SU1420268A1 (en) | Method of balancing flywheel | |
US4787132A (en) | Method of making dynamic rotational counterbalance structure | |
US2215701A (en) | Bearing roller | |
US434480A (en) | Ball-bearing | |
US1699450A (en) | Ball bearing |